This game has unused graphics. This game has debugging material. This game has a hidden sound test. This game has a hidden level select.

The One Piece series takes on an RPG adventure in the form of more obscure quizzes. Grand Line Dream Adventure Log is most notable for being the last official game to be compatible with the Game Boy, Super Game Boy, and Game Boy Color – all at a whopping 4MB!

Debug Menu

GameShark code 0108C3C6 or Game Genie code 089-7FC-E6E (using the Banpresto logo palette) will start the game in a debug menu. The menu includes a character viewer, cutscene viewer, sound test (music starts at 130), and the ability warp to any point in the game.

Unused Super Game Boy Palette

Appearing with the general border and INIT DATA_SND commands, there are two unused palette settings appearing slightly darker than the initial palette. It is unknown why they appear in the main listing instead of the separate palette listing.

Game Genie code ??8-47D-3BB (13, 23) will load either unused palettes. Both are located at 0x2813.